//
//  WXDUse.m
//  SchulteTab
//
//  Created by hztech on 2017/11/10.
//  Copyright © 2017年 hztech. All rights reserved.
//

#import "WXDUse.h"


@implementation WXDUse

+(NSMutableArray*)getRandomArr:(NSMutableArray *)arr{
    NSUInteger len = arr.count;
    NSMutableArray* hxt = [NSMutableArray arrayWithArray:arr];
    for (int i=0; i<len; i++) {
        int idx = arc4random()%(len-i);
        id temp = hxt[idx];
        hxt[idx] = hxt[len-1-i];
        hxt[len-1-i] = temp;
//        [hxt addObject:arr[idx]];
//        [arr removeObjectAtIndex:idx];
    }
    return hxt;
}
- (id)copyWithZone:(NSZone *)zone
{
    return self;
}

- (id)mutableCopyWithZone:(NSZone *)zone
{
    return self;
}
@end

@implementation daily



@end

